Home / 99,918.74-137,893.12-57,483.66

Finding the Fourth Proportional to 99,918.74, 137,893.12 and 57,483.66

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Solution

The fourth proportional to 99,918.74, 137,893.12 and 57,483.66 is: 79,330.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,918.74 : 137,893.12 = 57,483.66 : x
  2. Step 2: Convert to fraction form
    99,918.74/137,893.12 = 57,483.66/x
  3. Step 3: Cross multiply
    99,918.74x = 137,893.12 × 57,483.66
  4. Step 4: Simplify right side
    99,918.74x = 7,926,601,226.42
  5. Step 5: Solve for x
    x = 7,926,601,226.42/99,918.74
  6. Step 6: Final answer
    x = 79,330.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.